lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Mon, 08 Apr 2013 08:16:34 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	dingtianhong <dingtianhong@...wei.com>
Cc:	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Alexander Duyck <alexander.h.duyck@...el.com>,
	Netdev <netdev@...r.kernel.org>, Li Zefan <lizefan@...wei.com>,
	Xinwei Hu <huxinwei@...wei.com>
Subject: Re: [PATCH] net: add checks if dev->netdev_ops is NULL in
 register_netdevice()

On Mon, 2013-04-08 at 17:43 +0800, dingtianhong wrote:
> In some cases netdev->netdev_ops could be NULL in the register_netdevice(),
> thus a NULL point deference happens and lead to oops:

>  	/* Init, if this function is available */
> -	if (dev->netdev_ops->ndo_init) {
> +	if (dev->netdev_ops && dev->netdev_ops->ndo_init) {
>  		ret = dev->netdev_ops->ndo_init(dev);
>  		if (ret) {
>  			if (ret > 0)
> -- 1.8.0
> 

Seriously ?

This patch is not needed, and not complete anyway.

Fix the driver instead, we don't want this to happen.



--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists